Alright. Thanks man!Ya so it is a modem and router all-in-one thing.
To my knowledge ISP's usually provide those, I haven't really seen any around for sale but then again I haven't I've never in the market for one.
So for your situation, if you really need a new router I would either contact your ISP and get them to set you up with a stand alone modem, then you get whichever router you decide to get and set that up.
OR
Get a new router and use just the modem function of your Netgear CG814WG, although I'm not sure if that possible, you'd have to play around with I guess.